20003940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10103}}^1$

素因数の和:10129

約数の個数: 72

約数和(自身を含む): 66201408

約数和(自身を除く): 46197468

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10103, 20206, 30309, 40412, 50515, 60618, 90927, 101030, 111133, 121236, 151545, 181854, 202060, 222266, 303090, 333399, 363708, 444532, 454635, 555665, 606180, 666798, 909270, 1000197, 1111330, 1333596, 1666995, 1818540, 2000394, 2222660, 3333990, 4000788, 5000985, 6667980, 10001970, 20003940]

約数ペア:

[(1, 20003940), (2, 10001970), (3, 6667980), (4, 5000985), (5, 4000788), (6, 3333990), (9, 2222660), (10, 2000394), (11, 1818540), (12, 1666995), (15, 1333596), (18, 1111330), (20, 1000197), (22, 909270), (30, 666798), (33, 606180), (36, 555665), (44, 454635), (45, 444532), (55, 363708), (60, 333399), (66, 303090), (90, 222266), (99, 202060), (110, 181854), (132, 151545), (165, 121236), (180, 111133), (198, 101030), (220, 90927), (330, 60618), (396, 50515), (495, 40412), (660, 30309), (990, 20206), (1980, 10103)]